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https://issues.apache.org/jira/browse/FLINK-11574?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aljoscha Krettek deleted FLINK-11574:
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> Make StreamTask properly handle the DRAIN message.
> --------------------------------------------------
>
> Key: FLINK-11574
> URL: https://issues.apache.org/jira/browse/FLINK-11574
> Project: Flink
> Issue Type: Sub-task
> Reporter: Kostas Kloudas
> Assignee: Kostas Kloudas
> Priority: Major
>
> In this case, the {{StreamTask}} has to;
> - send {{MAX_WATERMARK}} so that timers fire
> - launch the checkpointing process
> - wait until also for the checkpoint notification callback to be successfully
> executed
> - make sure no elements are processed by downstream operators (req. for
> exactly-once with idempotent updates)
> - call {{close()}}
> - let the job go gracefully to {{FINISHED}}
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